PIC18LF8722-I/PT - 8-bit 40MHz 128KB Flash MCU 80-TQFP | Microchip
MPN: PIC18LF8722-I/PT ✓ Hoạt độngPIC18LF8722-I/PT Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), volatile data memory (SRAM), and a rich set of peripherals such as timers, communication interfaces, and analog-to-digital converters on one silicon die. Within the broader hierarchy, microcontrollers sit below microprocessors (which require external memory) and belong to the embedded computing category. The PIC18LF8722 belongs to the 8-bit class of microcontrollers and uses a modified Harvard RISC architecture with a 16-bit instruction word that is byte-addressable for data, optimizing both code density and execution throughput.
Key features of the PIC18LF8722-I/PT include 70 general-purpose I/O pins, four serial communication ports (two MSSP for I2C/SPI and two EUSART LIN-capable UARTs), a 10-bit ADC with up to 16 channels, multiple 8/16-bit timers, a 16-bit capture/compare/PWM module, and nanoWatt power management with multiple sleep modes. The 80-pin TQFP package provides ample I/O expansion and supports high pin-count designs while still being hand-solderable with proper tooling.
The PIC18LF8722 is engineered around a 16-bit enhanced instruction set with an 8-bit data path, featuring hardware multiplier and DC-to-83K data EEPROM emulation. Its C-optimized architecture simplifies ANSI C compilation, and the integrated ICD (In-Circuit Debugger) interface enables cost-effective development through Microchip's MPLAB and ICD tools.
Typical applications include industrial control panels with graphical LCD interfaces, automotive body controllers, building automation HVAC systems, sensor data acquisition nodes, USB peripherals (with external transceiver), motor control with PWM feedback, and medical instrumentation. The dual serial port set allows simultaneous connectivity to sensor buses (I2C) and wireless modules (UART) within the same firmware.
Designers should review the PIC18LF8722-I/PT datasheet for the proper external crystal, decoupling, and MCLR configuration to ensure reliable startup. Configuring the configuration bits (CONFIG1H through CONFIG3H) correctly is critical for oscillator selection, watchdog timer behavior, brown-out reset threshold, and code protection.
This page consolidates distributor pricing, drop-in compatible alternatives from the same PIC18F family, and practical design notes to help engineers select, source, and integrate the PIC18LF8722-I/PT more efficiently than consulting the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC18LF8722-I/PT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC18LF8722-I/PT (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, RoHS Status, Core Architecture, Mounting Type.
PIC18F8722-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF8720-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF8680-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF8621-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF8527-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF8722T-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF8722-I/PT Tỷ lệ tối đa & tính chất điện
| Manufacturer | Microchip Technology |
| Series | PIC® 18F |
| Core Processor | PIC |
| Core Size | 8-bit |
| Maximum CPU Frequency | 40 MHz |
| Program Memory Size | 128 KB (64K x 16) Flash |
| RAM Size | 4 KB |
| Number of I/O Pins | 70 |
| Supply Voltage Range | 2.0 V to 5.5 V |
| Khoảng nhiệt độ hoạt động | -40 °C to +85 °C (industrial) |
| Hộp | 80-TQFP (12x12 mm) |
| Kiểu lắp đặt | Surface Mount |
| ADC | 10-bit, up to 16 channels |
| Connectivity | I2C, SPI, UART (2x MSSP + 2x EUSART) |
| Power Management | nanoWatt Technology (multiple sleep modes) |
| Trạng thái RoHS | Compliant |
| Cấp MSL | 3 (168 hours) |
Cấu hình chân PIC18LF8722-I/PT
| Chân 1 | RG0 — General purpose I/O port G bit 0 |
| Chân 2 | RG1 — General purpose I/O port G bit 1 |
| Chân 3 | RG2 — General purpose I/O port G bit 2 |
| Chân 4 | RG3 — General purpose I/O port G bit 3 |
| Chân 5 | MCLR — Master Clear (reset) input, active low |
| Chân 6 | RG4 — General purpose I/O port G bit 4 |
| Chân 7 | VSS — Ground reference |
| Chân 8 | VDD — Positive supply voltage |
| Chân 9 | RA0/AN0 — Port A bit 0 / analog input 0 |
| Chân 10 | RA1/AN1 — Port A bit 1 / analog input 1 |
| Chân 11 | RA2/AN2 — Port A bit 2 / analog input 2 |
| Chân 12 | RA3/AN3 — Port A bit 3 / analog input 3 |
| Chân 13 | RA4/AN4 — Port A bit 4 / analog input 4 |
| Chân 14 | RA5/AN5 — Port A bit 5 / analog input 5 |
| Chân 15 | RA6/OSC2 — Port A bit 6 / oscillator output |
| Chân 16 | RA7/OSC1 — Port A bit 7 / oscillator input |
| Chân 17 | VSS — Ground reference |
| Chân 18 | VDD — Positive supply voltage |
| Chân 19 | RB0/INT0 — Port B bit 0 / external interrupt 0 |
| Chân 20 | RB1/INT1 — Port B bit 1 / external interrupt 1 |
| Chân 21 | RB2/INT2 — Port B bit 2 / external interrupt 2 |
| Chân 22 | RB3/INT3 — Port B bit 3 / external interrupt 3 |
| Chân 23 | RB4 — Port B bit 4 |
| Chân 24 | RB5 — Port B bit 5 |
| Chân 25 | RB6/PGC — Port B bit 6 / ICSP clock |
| Chân 26 | RB7/PGD — Port B bit 7 / ICSP data |
| Chân 27 | VSS — Ground reference |
| Chân 28 | VDD — Positive supply voltage |
| Chân 29 | RC0/T1CKI — Port C bit 0 / Timer1 clock input |
| Chân 30 | RC1/CCP2 — Port C bit 1 / CCP2 output |
| Chân 31 | RC2/CCP1 — Port C bit 2 / CCP1 output |
| Chân 32 | RC3/SCK/SCL — Port C bit 3 / SPI clock / I2C clock |
| Chân 33 | RC4/SDI/SDA — Port C bit 4 / SPI data in / I2C data |
| Chân 34 | RC5/SDO — Port C bit 5 / SPI data out |
| Chân 35 | RC6/TX1/CK1 — Port C bit 6 / USART1 TX / clock |
| Chân 36 | RC7/RX1/DT1 — Port C bit 7 / USART1 RX / data |
| Chân 37 | VSS — Ground reference |
| Chân 38 | VDD — Positive supply voltage |
| Chân 39 | RD0/PSP0 — Port D bit 0 / parallel slave port bit 0 |
| Chân 40 | RD1/PSP1 — Port D bit 1 / parallel slave port bit 1 |
| Chân 41 | RD2/PSP2 — Port D bit 2 / parallel slave port bit 2 |
| Chân 42 | RD3/PSP3 — Port D bit 3 / parallel slave port bit 3 |
| Chân 43 | RD4/PSP4 — Port D bit 4 / parallel slave port bit 4 |
| Chân 44 | RD5/PSP5 — Port D bit 5 / parallel slave port bit 5 |
| Chân 45 | RD6/PSP6 — Port D bit 6 / parallel slave port bit 6 |
| Chân 46 | RD7/PSP7 — Port D bit 7 / parallel slave port bit 7 |
| Chân 47 | VSS — Ground reference |
| Chân 48 | VDD — Positive supply voltage |
| Chân 49 | RE0/RD — Port E bit 0 / parallel slave port read |
| Chân 50 | RE1/WR — Port E bit 1 / parallel slave port write |
| Chân 51 | RE2/CS — Port E bit 2 / parallel slave port chip select |
| Chân 52 | RE3 — Port E bit 3 |
| Chân 53 | RE4 — Port E bit 4 |
| Chân 54 | RE5 — Port E bit 5 |
| Chân 55 | RE6 — Port E bit 6 |
| Chân 56 | RE7 — Port E bit 7 |
| Chân 57 | VSS — Ground reference |
| Chân 58 | VDD — Positive supply voltage |
| Chân 59 | RF0/AN6 — Port F bit 0 / analog input 6 |
| Chân 60 | RF1/AN7 — Port F bit 1 / analog input 7 |
| Chân 61 | RF2/AN8 — Port F bit 2 / analog input 8 |
| Chân 62 | RF3/AN9 — Port F bit 3 / analog input 9 |
| Chân 63 | RF4/AN10 — Port F bit 4 / analog input 10 |
| Chân 64 | RF5/AN11 — Port F bit 5 / analog input 11 |
| Chân 65 | RF6/AN12 — Port F bit 6 / analog input 12 |
| Chân 66 | RF7/AN13 — Port F bit 7 / analog input 13 |
| Chân 67 | VSS — Ground reference |
| Chân 68 | VDD — Positive supply voltage |
| Chân 69 | RH0 — Port H bit 0 |
| Chân 70 | RH1 — Port H bit 1 |
| Chân 71 | RH2 — Port H bit 2 |
| Chân 72 | RH3 — Port H bit 3 |
| Chân 73 | RH4 — Port H bit 4 |
| Chân 74 | RH5 — Port H bit 5 |
| Chân 75 | RH6 — Port H bit 6 |
| Chân 76 | RH7 — Port H bit 7 |
| Chân 77 | VSS — Ground reference |
| Chân 78 | VDD — Positive supply voltage |
| Chân 79 | RJ0 — Port J bit 0 |
| Chân 80 | RJ1 — Port J bit 1 |
Ứng dụng tiêu biểu
PIC18LF8722-I/PT phù hợp cho 7 Áp dụngs: Industrial Control Panel with Graphical LCD, Automotive Body and Climate Control Module, Building Automation HVAC Controller, Sensor Data Acquisition Node, USB Peripheral Bridge (External Transceiver), Medical Instrumentation Front End, Motor Control with PWM Feedback.
Industrial Control Panel with Graphical LCD
The PIC18LF8722-I/PT fits industrial HMI panels because its 70 I/O pins can directly drive a 4.4-inch graphical LCD in 8080 parallel mode while still leaving pins for matrix keypads, status LEDs, and rotary encoders. With 128 KB Flash and 4 KB RAM, it can host full ANSI C HMI stacks with menus and real-time graphics. The 2.0V to 5.5V supply range allows direct operation from 24V industrial rails stepped down to 5V or 3.3V. Its 10-bit ADC (up to 16 channels) reads analog sensors like thermistors and pressure transducers without external ADC chips, reducing BOM cost in panel meter designs.
Được đề xuất
Automotive Body and Climate Control Module
The PIC18LF8722-I/PT is well suited for automotive body controllers because its dual EUSART (LIN-capable) ports can simultaneously talk to a LIN master bus and a dashboard LIN slave, while the dual MSSP drives an I2C sensor cluster (temperature sensors, light sensors) and an SPI EEPROM for fault logging. The 10-bit ADC handles up to 16 analog channels for reading thermistors, position sensors, and battery voltage divided by a resistor network. The 70 I/O pins support direct drive of relays and stepper motors for HVAC mode doors. Note that AEC-Q100 qualification is NOT claimed on this part - for AEC-Q100 automotive compliance, migrate to PIC18F8722-I/PT variants qualified to automotive grade.
Được đề xuất
Building Automation HVAC Controller
In building automation HVAC controllers, the PIC18LF8722-I/PT orchestrates fan speed via PWM, reads multiple zone temperature sensors through its 10-bit ADC, and communicates with central management over RS-485 through the EUSART. The 128 KB Flash comfortably hosts Modbus RTU slave stacks and PID control loops with multi-zone scheduling. Its nanoWatt technology reduces standby power below 1 µA when the HVAC system is idle, an important feature for energy-star rated equipment. The wide 2.0V to 5.5V supply range enables direct operation from rectified 24VAC transformer rails after regulation.
Được đề xuất
Sensor Data Acquisition Node
The PIC18LF8722-I/PT works well as a multi-channel sensor data acquisition front end. With 16 ADC channels and dual MSSP ports, it can read strain gauges, RTDs, or 4-20 mA loop sensors through the ADC while simultaneously servicing an I2C digital sensor array (accelerometers, gyroscopes) and an SPI ADC for high-speed sampling. The 4 KB SRAM buffers time-stamped sensor frames before relaying them over UART to a host. The 40 MHz CPU clock executes 10 MIPS, sufficient for digital filtering and basic FFT preprocessing. Combined with nanoWatt sleep and battery operation down to 2V, this enables wireless sensor nodes powered by 2x AA cells.
Được đề xuất
USB Peripheral Bridge (External Transceiver)
The PIC18LF8722-I/PT can serve as a USB-to-UART or USB-to-I2C/SPI bridge when paired with an external USB transceiver such as the MCP2200 or FTDI FT232. The MCU implements the USB device class stack in firmware using its enhanced 8-bit core and 128 KB Flash. While the PIC18LF8722 lacks native USB hardware, this configuration is viable for legacy industrial peripherals and HID-class devices where the additional BOM cost of an external transceiver is acceptable. Engineers migrating to native USB should consider the PIC18F4550 family instead, which integrates USB 2.0 Full-Speed hardware.
Được đề xuất
Medical Instrumentation Front End
The PIC18LF8722-I/PT is appropriate for low-to-mid complexity medical instrumentation such as portable pulse oximeters, blood pressure monitors, and digital thermometers where its 10-bit ADC reads analog front-end signals (photodiode current, pressure transducer voltage, thermistor bridge). Its 128 KB Flash supports medical device firmware stacks with calibration tables and sensor compensation algorithms. The 40 MHz throughput handles real-time signal conditioning for pulse-rate computation. The wide 2.0V to 5.5V range supports battery operation from 2x AA cells, common in portable medical devices. Designers must validate IEC 60601 compliance and ESD protection at the system level.
Được đề xuất
Motor Control with PWM Feedback
The PIC18LF8722-I/PT supports BLDC and stepper motor control through its enhanced 16-bit CCP (Capture/Compare/PWM) modules generating complementary PWM with dead-band control. With 70 I/O pins, the MCU directly interfaces to gate drivers, Hall-effect position sensors, and quadrature encoders without external logic. Its 10-bit ADC samples motor current through shunt resistors for closed-loop torque control. The 128 KB Flash hosts field-oriented control (FOC) algorithms with lookup tables for sinusoidal commutation. Real-time performance reaches 10 MIPS, suitable for moderate-speed motor control up to several kHz PWM frequency.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18LF8722-I/PT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC18F8722-I/PT | PIC18LF8720-I/PT | PIC18LF8680-I/PT | PIC18LF8621-I/PT | PIC18LF8527-I/PT |
|---|---|---|---|---|---|---|
| Package | 80-TQFP (12x12 mm) | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 128 KB | 128 KB | 64 KB | 64 KB | 64 KB | 48 KB |
| RAM | 4 KB | 4 KB | 4 KB | 4 KB | 3.8 KB | 3.8 KB |
| Supply Voltage Range | 2.0 V to 5.5 V | 4.2 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| Maximum CPU Frequency | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) |
| I/O Pins | 70 | 70 | 70 | 70 | 70 | 70 |
| CAN Peripheral | No | No | No | Yes (CAN 2.0B) | No | No |
| Operating Temperature | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
Bảo phân biệt quan trọng
- Highest program memory in TQFP-80 PIC18LF family (vsPIC18LF8720-I/PT)
- Wide 2.0V-5.5V supply range enables battery operation (vsPIC18F8722-I/PT)
- Includes CAN peripheral absent on F/LF8722 (vsPIC18LF8680-I/PT)
Ghi chú thiết kế
Place a 100 nF ceramic decoupling capacitor as close as possible to each VDD pin pair (there are 6 VDD/VSS pairs around the TQFP-80 package perimeter - pins 8/7, 18/17, 28/27, 38/37, 48/47, 58/57, 68/67, 78/77). Add a single 10 µF bulk tantalum or ceramic capacitor near the MCU's main VDD entry. nanoWatt power management requires the configuration bits to enable the on-chip voltage regulator properly - set LVP (CONFIG3L) for low-voltage programming if not using a 5V programmer.
The 80-TQFP package has a 0.5 mm pitch and 12x12 mm body. Maintain at least 4-layer PCB with a continuous ground plane directly under the MCU for thermal dissipation and EMI suppression. Trace length matching is critical for the parallel slave port (PSP) pins RE0-RE2 and RD0-RD7 if used in external memory mode. Keep crystal traces (RA6/OSC2 and RA7/OSC1) shorter than 10 mm with grounded guard traces to prevent coupling to adjacent analog inputs.
Do not leave the MCLR pin floating - it MUST be pulled high through a 10 kΩ resistor to VDD for reliable operation. Floating MCLR causes random resets in noisy environments. Configuration bits (CONFIG1H through CONFIG3H) must be programmed in the correct sequence - incorrect oscillator configuration (HS vs XT vs EC) is the most common cause of PIC18F8722-family prototypes that fail to start. Verify the configuration bits match your crystal frequency using MPLAB X IDE's configuration bit viewer.
When using the MSSP peripheral in SPI mode at high speeds (>5 MHz), add 33 Ω series resistors on the SCK, SDO, and SDI lines near the MCU to dampen reflections on long PCB traces. For I2C mode, both SDA and SCL require external 4.7 kΩ pull-up resistors to VDD (the PIC18LF8722 has weak internal pull-ups only, rated for <1 mA). Total bus capacitance should remain below 400 pF for reliable 400 kHz Fast Mode operation.
Thông tin tuân thủ
RoHS compliant per Microchip product environmental data. Lead-free TQFP terminations. AEC-Q100 automotive qualification NOT claimed on the -I/PT industrial variant; for AEC-Q100, choose automotive-graded PIC18F8722 variants. Halogen-free status not specifically declared in available data.
